Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_INIT_H
3#define _ASM_X86_INIT_H
4
5#if defined(CONFIG_CC_IS_CLANG) && CONFIG_CLANG_VERSION < 170000
6#define __head __section(".head.text") __no_sanitize_undefined __no_stack_protector
7#else
8#define __head __section(".head.text") __no_sanitize_undefined
9#endif
10
11struct x86_mapping_info {
12 void *(*alloc_pgt_page)(void *); /* allocate buf for page table */
13 void (*free_pgt_page)(void *, void *); /* free buf for page table */
14 void *context; /* context for alloc_pgt_page */
15 unsigned long page_flag; /* page flag for PMD or PUD entry */
16 unsigned long offset; /* ident mapping offset */
17 bool direct_gbpages; /* PUD level 1GB page support */
18 unsigned long kernpg_flag; /* kernel pagetable flag override */
19};
20
21int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
22 unsigned long pstart, unsigned long pend);
23
24void kernel_ident_mapping_free(struct x86_mapping_info *info, pgd_t *pgd);
25
26#endif /* _ASM_X86_INIT_H */